To extract pyrite (FeS₂) from ore, a specialized crushing and sand-making production line is essential. The process typically involves jaw crushers for primary crushing, cone crushers for secondary reduction, and vertical shaft impact (VSI) crushers for sand shaping. Hydrochloric acid (HCl) or sulfuric acid (H₂SO₄) may be used in subsequent chemical leaching stages.
| Equipment | Model | Capacity (t/h) | Power (kW) |
|---|---|---|---|
| Jaw Crusher | PE-600×900 | 50-120 | 75 |
| Cone Crusher | CS160 | 109-181 | 160 |
| VSI Crusher | B-9100SE | 100-260 | 250 |
| Vibrating Screen | 3YK1860 | 50-400 | 18.5×2 |
The optimized flow includes:
1. Grizzly feeder for preliminary screening
2. Two-stage crushing with jaw + cone crushers
3. VSI crusher with closed-circuit screening
4. Sand washing system for final product refinement
Q: What’s the ideal feed size for pyrite processing?
A: ≤500mm raw ore is recommended for optimal crusher efficiency.
Q: How to control sulfur content in final aggregates?
A: Adjust VSI rotor speed between 45-60m/s to achieve proper particle liberation.
Q: Typical wear parts replacement cycle?
A: Cone crusher mantles last ~800 hours; VSI tips ~300 hours in abrasive pyrite applications.
A 200tph plant achieved:
– Final product: 0-5mm sand (
